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Finding the Fourth Proportional to 222,429.20, 333,643.80 and 127,950.80

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Solution

The fourth proportional to 222,429.20, 333,643.80 and 127,950.80 is: 191,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,429.20 : 333,643.80 = 127,950.80 : x
  2. Step 2: Convert to fraction form
    222,429.20/333,643.80 = 127,950.80/x
  3. Step 3: Cross multiply
    222,429.20x = 333,643.80 × 127,950.80
  4. Step 4: Simplify right side
    222,429.20x = 42,689,991,125.04
  5. Step 5: Solve for x
    x = 42,689,991,125.04/222,429.20
  6. Step 6: Final answer
    x = 191,926.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.